So tonight I went tothe track, ran a best of 13.9 (ya very very ****ty, but I was also shifting slow and had bad 60 fts

The best I could trap all night was 100mph. Since my last tune, I added a 10.5 hotside, megan downpipe, megan o2 housing, megan manifold, forge dv, fp wastegate and a new mbc. Could that be the reason????? Do I need a new tune (besides my slow shifting, But for some reason when I try and shift fast its like it wont get in gear! )
Thanks in advance for any help/ advice.

 

Well, if your tables weren't scaled past 260 then that could be your problem. I wouldn't say it's the tune's fault, but more of the stock table scaling's fault. I believe that when you exceed the load scaling the ECU pulls a bit of timing, so you would lose power there.

 

What was your trap speed? NM.. I see it. 100mph is pretty low. Yea, you need to log the car / get it logged to see what's going on with your tune.

 

It doesn't pull power it just stays static above that load level.

 

Okay, I had heard that it pulls timing after you exceed the load scale.

 

since it is so easy to log with the flash cable I'd give it a try.

you have a pressure gauge?
try putting the stock intake system back on and see if that helps.
then, if you want, do the ecu flash if only so you can log. Its great fun/frustration/fun, and cheap, but then you will be able to get informative help or see what is going on yourself.

with the ecuflash you don't have to do any flashing in order to log, if flashing sounds risque.

 

When I added my 10.5 hot side, ported exhaust manifold, and ported O2 housing I had my car retuned. My tuner said that I had leaned out a bit above 5500 RPM. He richened up my A/F ratio some and squeezed out a little over 20 horsepower and my torque improved also. I would get retuned if I were you.

 

send me a log file of a 3rd gear pull from 2500 to redline and I'd be glad to give you an opinion on the current tune.